28results about How to "Improve contact status" patented technology

The utility model discloses a feeding device, including the casing and vertical interval installation on the casing's first conveying mechanism and second conveying mechanism, and the first conveying mechanism includes two interval settings's first transmission wheel and the first conveying belt of being around arranged in two first transmission wheel outside, and the second conveying mechanism includes two interval settings's second transmission wheel and the second conveying belt of being around arranged in two second transmission wheel outside, and the first conveying belt and second conveying belt form the conveying channel between, and the first conveying mechanism is vertically floating installation on the casing through the elastic floating mechanism to adjust the interval of conveying channel, and the first conveying belt includes the first conveying section of being located in the conveying channel side and being between two first transmission wheels, and the casing still is equipped with the elastic compression device, and the elastic compression device is used for the first conveying section elastic pressing to the second conveying mechanism direction. The utility model discloses a feeding device, can reduce the crushing of reed straw, improve reed utilization rate, and can simplify the structure of feeding device.

This utility model discloses a miniature ball bearing for a cooling fan, comprising an outer ring, an inner ring, a cage, a dust cover, and rolling elements movably disposed between the outer and inner rings. Both the inner and outer peripheral walls of the outer ring and the inner ring have circumferentially formed grooves for the rolling elements to move. Both ends of the inner peripheral wall of the outer ring have circumferentially formed stepped grooves for installing the dust cover. The connections between the grooves of the inner ring and the outer peripheral wall of the inner ring, and between the grooves of the outer ring and the inner peripheral wall of the outer ring, have chamfered edges. A retaining spring is provided in the stepped groove for an interference fit with the stepped groove. The inner wall of the retaining spring abuts against the outer wall of the dust cover, while the outer peripheral wall of the dust cover has a clearance fit with the inner peripheral wall of the stepped groove. The curvature coefficient of the grooves of the outer ring is greater than that of the grooves of the inner ring. This utility model solves the problems of traditional miniature ball bearings, such as increased bearing ellipticity due to dust cover installation leading to out-of-tolerance bearing ellipticity, and assembly damage during rolling element installation leading to unqualified rolling element vibration during bearing operation.

The utility model discloses a guide wheel structure of a steel wire rope braiding machine, which belongs to the field of guide wheel structures and comprises a concave support frame, a guide wheel body and an installation adjusting mechanism, during installation, a movable seat can move along the top surface of the support frame under the matching action of a T-shaped sliding block and a T-shaped sliding chute only by rotating a threaded knob, and the guide wheel body is fixed on the support frame. When the guide wheel is worn due to long-time use and needs to be replaced, the threaded knob is rotated, the distance between the movable seat and the fixed seat is adjusted, the rotating shafts on the two sides of the guide wheel are smoothly placed in the bearings of the fixed seat and the movable seat, and then the threaded knob is reversely rotated to reset the movable seat, so that the guide wheel can be mounted; when the guide wheel needs to be replaced, the movable seat is moved, an old guide wheel can be easily taken out, and a new guide wheel can be installed, so that the working efficiency is greatly improved, the downtime of equipment caused by replacement of the guide wheel is reduced, and the time cost and the labor cost of production are reduced.

The invention belongs to the technical field of outlet box sealing, and particularly relates to a motor outlet box. The outlet box comprises a seat body installed on a motor casing, a box body supported on the seat body, an insulating plate which is arranged at the bottom of the box body and is detachably and fixedly connected with the seat body, and a plurality of binding post units which penetrate through the insulating plate and are arranged in a sealing manner, the binding post unit comprises a binding post with different diameter parts in the axial direction and an insulating pressing cover for pressing the binding post in the insulating plate; the insulating plate is provided with a stepped hole matched with the binding post unit, and a sealing structure is arranged on the joint face, abutting against the binding post, of the stepped hole. Therefore, the insulating pressing cover of the outlet box can press the binding post on the insulating plate, so that the sealing structure between the binding post and the insulating plate can realize effective sealing. And meanwhile, the contact state of a sealing interface is optimized, so that the sealing structure only bears axial compression instead of torsion and is not deformed and abraded, the service life of the sealing structure is greatly prolonged, and the service life of the motor is prolonged.

This application relates to the field of cold cathode field emission material preparation technology, and discloses a method for preparing a graphene-diamond composite structure to improve the field emission performance of diamond. The method involves first dispersing nanodiamonds and graphene oxide in a deep eutectic solvent; then adding boric acid to induce an in-situ sol-gel transformation under heating, forming a gel network that locks the dispersed phase; followed by microwave-assisted interface activation and gradient high-temperature carbonization, and finally cleaning and drying to obtain the product. This invention effectively suppresses phase separation and agglomeration during pyrolysis through a gel solidification mechanism, and utilizes the deep eutectic solvent and boric acid pyrolysis to achieve in-situ co-doping of nitrogen and boron, constructing a low-barrier continuous conductive channel on the diamond surface, and realizing tight electrical interconnection between components. This method is simple and controllable, and the resulting composite material possesses excellent conductivity, low turn-on electric field, and high emission stability, thus improving the electron emission efficiency of cold cathode devices.

This invention discloses a belt anti-scratch system and method for a belt sampling machine. The system includes a support frame, a protective cover, and a main controller. The support frame is mounted on the belt conveyor frame, with the protective cover connected to its upper part. Industrial cameras are installed inside the protective cover and at the bottom of the belt for real-time monitoring of the belt's condition. A rotating support is mounted on the support frame, with a rotating shaft passing through the protective cover. One end of the shaft is connected to a reducer and a motor, while the other end holds a sampling head placed inside the protective cover, forming a rotatable sampling structure. The main controller is electrically connected to the industrial cameras and the motor. It acquires belt image data through the industrial cameras, processes the data, and then controls the motor to drive the sampling head, achieving monitoring of the belt's operating status and anti-scratch control during the sampling process. Through structural integration and intelligent control, this system effectively prevents the sampling head from scratching the belt, improving the safety and reliability of equipment operation.

This utility model relates to the field of FC socket technology and discloses a combined FC socket module, including an FC plug, an FC socket, and an FC jumper. A mounting block is fixedly disposed on one side of the FC socket, and a mounting groove is formed on one side of the FC plug. The mounting block and the mounting groove cooperate to connect the FC plug and the FC socket. The FC jumper is fixedly connected inside the FC plug. A pin is fixedly connected inside the FC socket and connects to one end of the FC jumper. A connecting component is provided between the FC plug and the FC socket. The connecting component includes a magnetic post and an adsorption groove. The magnetic post is fixedly disposed inside the mounting groove, and the adsorption groove is formed on the outer wall of the mounting block. The magnetic post slides against the adsorption groove, and the magnetic post adsorbs the adsorption groove, stably connecting the mounting block inside the mounting groove. This solves the problem of the laborious disassembly and assembly of existing equipment.

This utility model discloses an auxiliary positioning device for a medium- and high-voltage electronic aluminum foil corrosion production line, relating to the field of aluminum foil corrosion production technology. It includes a tank body with a positioning mechanism fixedly installed in the middle, and side guide rollers fixedly installed at both ends of the tank body. Using this structure, the auxiliary positioning device drives the slide and plate to move vertically via a screw, precisely adjusting the depth of the pressure roller's immersion in the electrolytic cell. This adapts to different thicknesses of aluminum foil and electrolyte concentrations. Simultaneously, the limiting discs at both ends of the pressure roller and side guide rollers, with their spacing adjusted by hand-tightening screws, effectively constrain the lateral displacement of the aluminum foil. The combination of these two components ensures that the aluminum foil is conveyed centered along a preset path, avoiding deviation and friction with the electrode plate, reducing surface damage, and ensuring that the contact angle and area between the aluminum foil and the electrolyte are always optimal. This significantly improves corrosion uniformity and conveying accuracy, and reduces the scrap rate.

The utility model discloses a scalable impeller aerator belongs to aerator technical field, it includes: motor, the bottom fixed mounting of motor has reduction gearbox, the inside rotatory mounting of reduction gearbox has rotary rod, the bottom fixed mounting of rotary rod has limit cylinder, the inside sliding connection of limit cylinder has telescopic axle, the outside movable plug connection of telescopic axle has connecting cylinder, the bottom fixed mounting of connecting cylinder has impeller main part, the outside fixed mounting of connecting cylinder has protection cylinder, the inside fixed mounting of protection cylinder has two rectangular blocks, the inside all of two rectangular blocks are established and have inclined slot, all sliding connection of two inclined slots have push block. The utility model discloses through the mutual cooperation between sliding ring, drawboard, connecting rod, connecting plate, push block, inclined slot and plug rod makes the plug rod no longer to carry out the fixed between connecting cylinder and telescopic axle to the convenient maintenance replacement of connecting cylinder and impeller main part, need not to change the whole to greatly reduced production cost, and the practicality is wider.

The present application relates to the technical field of locomotive blind area early warning, and particularly relates to a locomotive lookout blind area visual early warning system, comprising: a data acquisition module, configured to collect image data of the locomotive in real time; a data analysis module, configured to determine whether the pantograph offset is out of limit based on the pantograph offset; a contact analysis module, configured to determine whether the contact stability meets the standard based on the contact pressure fluctuation value, and to increase the pantograph spring tension according to the difference between the contact pressure fluctuation value and the first contact pressure fluctuation threshold; a line analysis module, configured to determine whether the catenary line recovery is qualified based on the line recovery time length, and to increase the preset interval according to the ratio of the preset line recovery time length and the line recovery time length; and a track analysis module, configured to determine whether the pantograph and the catenary line match meet the standard based on the flatness similarity, and to decrease the lowering pantograph spring tension according to the relative difference between the flatness similarity threshold and the flatness similarity, the present application improves the accuracy of the locomotive lookout blind area early warning.

The present invention relates to the technical field of new energy materials and lithium ion batteries, and discloses an all-solid-state battery using a high-stability sulfide solid electrolyte, the all-solid-state battery comprises a positive electrode layer, a negative electrode layer and a solid electrolyte layer located between the positive electrode layer and the negative electrode layer, the solid electrolyte layer comprises high-performance sulfide solid electrolyte powder, the powder is prepared from lithium sulfide, phosphorus pentasulfide, germanium disulfide and lithium chloride according to a specific molar ratio, and a slow cooling state crystal structure is formed by matching heat treatment in a specific temperature zone with a slow cooling process. The positive electrode layer comprises a layered nickel cobalt lithium manganate material of which the surface is coated with an amorphous lithium niobate layer, and the coating layer is formed through pure oxygen calcination. Through the synergistic effect of element doping and slow cooling processes, the ionic conductivity and water-resistant stability of the electrolyte are improved; meanwhile, a space charge layer effect and an interface side reaction are inhibited by utilizing a positive electrode interface coating technology, the interface impedance of the battery is reduced, and excellent electrochemical performance and long cycle life of the all-solid-state battery are realized.

The utility model discloses a wire and cable insulation longitudinal cutting device, and particularly relates to the technical field of wire and cable processing, the wire and cable insulation longitudinal cutting device comprises a bottom plate, the front side of the upper end of the bottom plate is fixedly connected with an L-shaped support, the middle part of the upper end of the bottom plate is fixedly connected with a clamping assembly, and the middle part of the clamping assembly is provided with a cable; an electric sliding rail is fixedly connected to the rear side of the upper end of the bottom plate, a sliding block is slidably connected to the upper side of the electric sliding rail, and an adjusting assembly is fixedly connected to the upper end of the sliding block. According to the wire and cable insulation longitudinal cutting device, the height of the blade can be adjusted through the adjusting assembly, it is guaranteed that the blade and a cable insulation layer are kept in the best contact state in the cutting process, the abraded blade can be replaced through the cutting assembly, the cutting precision can be guaranteed, and the cutting efficiency is improved. The cable cutting device has the advantages that efficient cutting capacity of the device is kept all the time, cutting precision is improved, and a clamping assembly is arranged, so that the cable can be clamped, and displacement or shaking of the cable in the cutting process is prevented.

The invention relates to the technical field of animal husbandry, and discloses a temperature-sensitive sustained-release gel for treating cow mastitis and a preparation method thereof.The temperature-sensitive sustained-release gel is prepared from, by mass, 15%-24% of a triblock copolymer PLGA-PEG-PLGA solution, 3-7 parts of eucommia ulmoides powder, 2-5 parts of nisin, 1-3 parts of a stabilizer, 1-3 parts of a pH regulator and the balance water. One-time perfusion can be completed under the condition of a small administration volume, a stable sustained-release drug library is formed in the local part of the mammary gland, and the drug is continuously and slowly released through the diffusion effect of the gel layer, so that a lasting inhibition effect is generated on pathogenic bacteria on the surface and in the mammary gland tissue. Due to the fact that the medicine mainly plays a role in the local part of the breast, the high local medicine concentration can be maintained in the breast tissue, diffusion of the medicine to the whole body tissue is reduced, and therefore the risk that the medicine has adverse effects on non-lesion organs or tissues is reduced.

This application provides a device for measuring the water temperature inside the distribution ring pipe of a high-head giant impulse turbine unit. The device includes a temperature measuring module and a monitoring and control module communicatively connected to the temperature measuring module. The temperature measuring module includes: a mounting base, sealed and fixed to the temperature measuring hole at the end of the distribution ring pipe; a pressure-bearing protection pipe, one end of which passes through the mounting base and extends into the distribution ring pipe, and is sealed to the mounting base, while the other end is located outside the distribution ring pipe and connected to a tee pipe; a temperature probe, inserted inside the pressure-bearing protection pipe, which is filled with a heat-conducting medium, and the signal line of the temperature probe is led out through the tee pipe and connected to the monitoring and control terminal. The monitoring and control terminal is configured to: acquire the water temperature data collected by the temperature probe inside the distribution ring pipe, and dynamically calculate and adjust the pressure head of the distribution ring pipe based on the water temperature data. This application decouples the pressure-bearing function and the temperature measuring function of the temperature measuring device, enabling accurate measurement of the water temperature.

The utility model provides a self-adjusting wheel device, and relates to the technical field of wheels, the self-adjusting wheel device comprises a chassis and a wheel body, the interior of the chassis is slidably connected with a sliding column, the top end of the sliding column is fixedly provided with a connecting block, the bottom end of the sliding column is fixedly provided with a U-shaped frame, and the outer wall of the sliding column is sleeved with a self-adaptive spring. The sliding columns, the U-shaped frames and the self-adaptive springs are arranged between the wheel bodies and the chassis, so that when equipment carried by the device runs on a bumpy road and encounters a pit or a bulge, the self-adaptive springs can be compressed or stretched according to the magnitude of impact force; when the wheel body encounters the protrusions, part of impact force is absorbed, vibration transmitted to an equipment chassis is reduced, when the wheel body sinks into the potholes, the wheel body is assisted to quickly recover to the proper position so as to keep a good contact state with the ground, the running stability of a vehicle is improved, damage of the impact force to internal parts of equipment is reduced, and the service life of the vehicle is prolonged. The problems of a traditional wheel device are effectively solved.

The utility model discloses an anti-scaling scraper, which relates to the technical field of drying machines, and comprises a mounting seat, a plurality of scraper group fixing plates, a chute, a scraper seat, a transmission rod, a blade clamping plate, a scraper and a driving mechanism, the side surface of the mounting seat is in the shape of a right trapezoid, and the plurality of scraper group fixing plates are uniformly and fixedly connected to one side of the inclined surface of the mounting seat; the sliding groove is formed in the upper portion of the scraper set fixing plate, the scraper base is connected in the sliding groove in a sliding mode, the transmission rod is connected to the scraper base through threads, a first thread and a second thread which are opposite in direction are arranged on the transmission rod at intervals, the blade clamping plate is installed in the scraper base, and the scraper is riveted in the blade clamping plate. The driving mechanism comprises a driving motor, a rotating rod, a driving gear and a driven gear, the driven gear is fixedly connected to the end of the transmission rod, the distance between the blade and the drying disc is adjusted through the scraper, and abrasion to the drying disc is effectively prevented.

Disclosed is a pressure sensor. The pressure sensor of the present disclosure includes a holder to which a terminal is coupled, a main body to which the holder is coupled and formed with an inlet hole through which an external fluid is introduced, a sensing body which forms a fluid passage connected to the inlet hole within the main body, a sensor chip which is coupled to a first surface of the sensing body and configured to sense pressure in the fluid passage, a circuit board configured to receive a signal from the sensor chip and connected to the terminal, and a coil spring having one end contacting the terminal in a first direction within the holder and the other end contacting an external terminal outside the holder. The pressure sensor according to the present disclosure can prevent the bending deflection of the terminal when the terminal is connected to the external terminal, facilitate the manufacture of the terminal, and maintain a good contact state for a relatively long period of time even when the terminal is repeatedly connected to the external terminal.

The utility model relates to the technical field of inductive switches, and discloses an inductive switch. The switch comprises a switch shell, an internal PCB and a wiring terminal, the wiring terminal comprises a wire connecting part and an elastic part, the elastic part is of an annular structure formed by encircling a first straight plate part, a second straight plate part, a third straight plate part and an arc-shaped contact part, and the arc-shaped contact part is in sliding contact with the surface of the first straight plate part. According to the structure, the wiring terminal is in elastic contact connection with the PCB through the elastic part. The connection stability of the inductive switch is greatly improved, the annular high-elasticity characteristic of the elastic part can resist vibration and temperature change influences, and connection looseness and poor contact are avoided; the service life is obviously prolonged, and the arc-shaped contact part and the straight plate part I slide relatively to release pressure when being pressed, so that irreversible deformation of the elastic part is prevented; and the elastic contact connection replaces welding, so that the later operation process is simplified, and the use convenience and the overall operation efficiency of the equipment are improved.

The utility model discloses a turntable side edge drive wheel mechanism relates to mechanical drive technical field, including fixed frame, be equipped with movable frame in fixed frame, and movable frame slidingly connects in fixed frame, movable frame is equipped with drive motor, and the output shaft of drive motor is connected with the input end of gear reduction mechanism, and the output shaft of gear reduction mechanism passes through axle hole and is fixedly installed with drive wheel, and the back side of drive wheel cooperates with turntable side edge, movable frame both sides are all fixedly connected with mounting panel, and the middle horizontal fixed mounting of mounting panel has screw rod, and the rear end of screw rod is connected with one end of spring, and the other end of spring is fixedly installed in the back of fixed frame, the utility model discloses overcome the deficiency of prior art, through the elastic adjustment mechanism of spring, the deformation of turntable is adapted to, and movable frame can track turntable contour change in real time under the action of spring. With effective guarantee drive wheel and turntable side edge always keep optimum contact state, to guarantee the stability and precision of turntable rotation.

The utility model discloses a high-standard fertilizer spreading and soil covering device for farmland. The high-standard fertilizer spreading and soil covering device comprises a box body, fertilizer is added into the box body, the electric push rod is started to push the mounting shell and the second motor to move, the sowing disc at the output end of the second motor is moved out of the discharging pipe, the discharging pipe is in an open state at the moment, and then the second motor drives the sowing disc to rotate to achieve uniform sowing of the fertilizer; meanwhile, a soil covering roller at the bottom of a connecting plate synchronously completes soil covering operation, aiming at the problem of soil covering height adjustment, the device drives a screw to rotate by starting a first motor on a transverse plate, and a threaded cylinder moves in the axial direction of the screw and drives a fixed frame to integrally lift under the synergistic effect of a limiting block and a limiting groove, so that the operation height of the soil covering roller is accurately adjusted; according to the adjusting mechanism, the limitation of a traditional fixed soil covering plate is effectively solved, the device can flexibly adjust operation parameters according to different crop planting depths or soil conditions, and the adaptability and the practical value of the device are improved.

The utility model relates to electrical equipment connection technical field discloses a quick connecting device of medium and low voltage switch equipment, it includes switch body, switch body is connected in movable frame in connecting structure through bolt, and connecting structure contains movable frame and connecting frame, and connecting frame is fixed in mounting surface, and the four around in connecting structure is equipped with guide assembly, and is matched with the taper convex block and the taper recess with ball, realizes accurate butt joint, and the inside middle is equipped with conducting assembly, and is contacted through conducting column and petal formula elastic contact, guarantees the stable conduction, and the both sides of connecting structure are equipped with limiting component and locking assembly, and the protruding block of limiting component and the locking block of locking assembly, damping and spring cooperation, complete quick location locking, and the support platform of connecting frame lower extreme strengthens the connection stability, the device can realize the quick, stable connection of medium and low voltage switch equipment, and the installation is convenient, and the security is high.

The application discloses a flue gas desulfurization and purification device based on an environmental protection system of a thermal power plant, and relates to the technical field of flue gas purification. The flue gas desulfurization and purification device based on the environmental protection system of the thermal power plant comprises a tower body, a flue gas inlet arranged on one side of the tower body, a flue gas outlet arranged on the top of the tower body, and a purification delaying mechanism arranged in the tower body. The purification delaying mechanism comprises a first pipeline and a second pipeline arranged on the tower body, a plurality of spray heads arranged on the first pipeline, and a plurality of spray heads arranged on the second pipeline. The flue gas desulfurization and purification device based on the environmental protection system of the thermal power plant has the advantages that the two layers of spray heads and the two layers of spray heads are arranged in a cross mode, a multi-stage washing field with full coverage can be formed, the particle diameters of the spray drops and the spray mist drops are complementary, there is no dead angle for desulfurization, the contact time of the flue gas with the mist and the drops is prolonged, the blocking round plates arranged at the inlets of the multiple layers form a labyrinth flow channel, the rising speed of the flue gas can be effectively delayed, the residence time of the flue gas in the tower is prolonged, and the flue gas can be fully contacted with the desulfurization medium.

The invention relates to the technical field of acupoint application, and particularly discloses a traditional Chinese and western medicine combined acupoint application device for adjuvant therapy of hypertension, which is technically characterized by comprising a main fixing part, a thermal therapy module, a binding belt and a main controller. The top of the main fixing piece is provided with a through groove and a first through hole, the thermal therapy module is slidably connected in the first through hole, and the bottom is connected with the pressure plate; binding belts are hinged to two sides of the back of the main fixing piece; the main controller is connected with the thermal therapy module through a power line. Second through holes and locking assemblies are arranged on the two sides of the front face of the main fixing piece, and binding belt locking is achieved through tooth part meshing. Firm fixation is achieved through the mechanical locking mechanism, and plaster is prevented from falling off; quick absorption of the medicine is promoted through a controllable heating system; and the application pressure is accurately controlled through the pressure adjusting mechanism. According to the device, traditional Chinese medicine acupoint application and the modern temperature control technology are organically combined, and the effect, convenience and comfort of hypertension adjuvant therapy are remarkably improved.

The utility model provides a kind of hose wall quality detection device and hose production line, belong to pipe manufacturing field, including respectively being equipped with the first sealing element and second sealing element in the both ends of hose to be detected;Wherein, first sealing element includes first telescopic link, first expansion ring and first limit block, first limit block is equipped with the first through hole of sliding adaptation with first telescopic link, first telescopic link one end is driven by external force and moves axially, and the other end is axially locked and is equipped with first expansion ring, with the movement of first telescopic link, first expansion ring is extruded by first limit block axially and expands radially, and with the inner wall sealing connection of one end of hose to be detected;Second sealing element structure refers to first sealing element;First telescopic link and / or the second telescopic link in the air flow channel that can be communicated with hose to be detected and supply pressure pipeline are equipped with.Compared with prior art, the utility model solves the technical problem that the existing hose detection equipment cannot detect the problem of internal damage.

A tractor brake assembly relates to the technical field of tractor brakes and comprises a shell and a piston which are both of an annular structure, and the piston is installed in an inner cavity of the shell. A plurality of return devices are mounted between the shell and the piston; a plurality of mounting through holes are formed in the shell in the axial direction of the shell, the return device is coaxially mounted in the mounting through holes and comprises a pull rod, a pressure spring and an elastic cylindrical pin, the elastic cylindrical pin is arranged in the mounting through hole and is in interference fit with the mounting through hole, and the outer end of the pull rod penetrates through the elastic cylindrical pin and then is detachably connected with the piston; the compression spring is arranged on the periphery of the pull rod in a sleeving mode and elastically connected between the elastic cylindrical pin and the inner end of the pull rod in an abutting mode. The piston can automatically return, the piston return capacity is improved, normal use of a tractor brake assembly is guaranteed, and potential safety hazards of driving are reduced.

This utility model discloses an indoor floor cleaning tool, relating to the field of floor cleaning technology. It includes a mobile frame, one end of which is fixedly connected to a positioning frame. A height adjustment component is slidably connected to the inner wall of the positioning frame. The height adjustment component includes a connecting reinforcement rod and an electric push rod. A cleaning component is located at one end of the connecting reinforcement rod. This utility model uses a drive motor to rotate the cleaning brush, enabling powerful scrubbing of the floor. Simultaneous dust collection with a vacuum component allows for brushing and vacuuming simultaneously, effectively preventing dust generation and improving cleaning efficiency and effectiveness. A single operation completes both scrubbing and vacuuming. The electric push rod and connecting reinforcement rod in the height adjustment component allow for flexible adjustment of the cleaning component's height according to different floor conditions and cleaning needs, ensuring optimal contact between the cleaning brush and the floor. This enhances the equipment's applicability and makes it suitable for various types of indoor floor cleaning.

The present application relates to the technical field of semiconductor device testing and its testing probe, in particular to a kind of semiconductor device testing probe and its semiconductor device testing method.The present application first obtains the contact stability coefficient of testing probe at each test monitoring moment, further determines all abnormal contact moments under each abnormal contact type in its preset historical test period, and then according to the total number of abnormal contact type and contact stability coefficient, and the change distribution of contact resistance in the preset time domain of abnormal contact moment under different abnormal contact types, obtains the pressure application abnormal coefficient of testing probe and adjusts the applied pressure.The present application evaluates the contact state by analyzing the change characteristics of contact resistance, and then evaluates the abnormal situation of the applied pressure of testing probe, to adjust the applied pressure, so as to ensure the good contact between testing probe and device test point, and improve the testing accuracy of semiconductor device.

This utility model relates to a positioning device for precision machining of metal castings. It includes a base plate, a support platform for supporting the metal casting, positioning elements for positioning the metal casting, a swing rod for moving the positioning elements, a turntable for swinging the swing rod, a rotating rod for rotating the turntable, and a transmission device mounted on the base plate. The support platform is mounted on the top of the base plate; both ends of the support platform have sliding openings; two sets of symmetrically arranged positioning elements are simultaneously slidably connected to the two sets of sliding openings; the turntable is arranged around the rotating rod. This invention solves the technical problem that existing positioning devices struggle to quickly adapt to the machining needs of castings of different models and sizes while ensuring machining accuracy. Furthermore, the positioning plates of existing devices often use welded or integral structures, requiring the disassembly of numerous related components when replacing the positioning plate to accommodate castings of different shapes, making maintenance and replacement extremely difficult.